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TheRock/compiler/amd-llvm/clang/test/CodeGen/ms-anonymous-struct.c
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

100 lines
3.6 KiB
C

// RUN: %clang_cc1 -fms-extensions -emit-llvm -o - %s | FileCheck %s
// CHECK: %struct.test = type { i32, %struct.nested2, i32 }
// CHECK: %struct.nested2 = type { i32, %struct.nested1, i32 }
// CHECK: %struct.nested1 = type { i32, i32 }
typedef struct nested1 {
int a1;
int b1;
} NESTED1;
struct nested2 {
int a;
NESTED1;
int b;
};
struct test {
int x;
struct nested2;
int y;
};
void foo(void)
{
// CHECK: %var = alloca %struct.test, align 4
struct test var;
// CHECK: getelementptr inbounds nuw %struct.test, ptr %var, i32 0, i32 1
// CHECK-NEXT: getelementptr inbounds nuw %struct.nested2, ptr %{{.*}}, i32 0, i32 0
// CHECK-NEXT: load i32, ptr %{{.*}}, align 4
var.a;
// CHECK-NEXT: getelementptr inbounds nuw %struct.test, ptr %var, i32 0, i32 1
// CHECK-NEXT: getelementptr inbounds nuw %struct.nested2, ptr %{{.*}}, i32 0, i32 2
// CHECK-NEXT: load i32, ptr %{{.*}}, align 4
var.b;
// CHECK-NEXT: getelementptr inbounds nuw %struct.test, ptr %var, i32 0, i32 1
// CHECK-NEXT: getelementptr inbounds nuw %struct.nested2, ptr %{{.*}}, i32 0, i32 1
// CHECK-NEXT: getelementptr inbounds nuw %struct.nested1, ptr %{{.*}}, i32 0, i32 0
// CHECK-NEXT: load i32, ptr %{{.*}}, align 4
var.a1;
// CHECK-NEXT: getelementptr inbounds nuw %struct.test, ptr %{{.*}}var, i32 0, i32 1
// CHECK-NEXT: getelementptr inbounds nuw %struct.nested2, ptr %{{.*}}, i32 0, i32 1
// CHECK-NEXT: getelementptr inbounds nuw %struct.nested1, ptr %{{.*}}, i32 0, i32 1
// CHECK-NEXT: load i32, ptr %{{.*}}, align 4
var.b1;
// CHECK-NEXT: getelementptr inbounds nuw %struct.test, ptr %var, i32 0, i32 0
// CHECK-NEXT: load i32, ptr %{{.*}}, align 4
var.x;
// CHECK-NEXT: getelementptr inbounds nuw %struct.test, ptr %var, i32 0, i32 2
// CHECK-NEXT: load i32, ptr %{{.*}}, align 4
var.y;
}
void foo2(struct test* var)
{
// CHECK: alloca ptr, align
// CHECK-NEXT: store ptr %var, ptr %{{.*}}, align
// CHECK-NEXT: load ptr, ptr %{{.*}}, align
// CHECK-NEXT: getelementptr inbounds nuw %struct.test, ptr %{{.*}}, i32 0, i32 1
// CHECK-NEXT: getelementptr inbounds nuw %struct.nested2, ptr %{{.*}}, i32 0, i32 0
// CHECK-NEXT: load i32, ptr %{{.*}}, align 4
var->a;
// CHECK-NEXT: load ptr, ptr %{{.*}}, align
// CHECK-NEXT: getelementptr inbounds nuw %struct.test, ptr %{{.*}}, i32 0, i32 1
// CHECK-NEXT: getelementptr inbounds nuw %struct.nested2, ptr %{{.*}}, i32 0, i32 2
// CHECK-NEXT: load i32, ptr %{{.*}}, align 4
var->b;
// CHECK-NEXT: load ptr, ptr %{{.*}}, align
// CHECK-NEXT: getelementptr inbounds nuw %struct.test, ptr %{{.*}}, i32 0, i32 1
// CHECK-NEXT: getelementptr inbounds nuw %struct.nested2, ptr %{{.*}}, i32 0, i32 1
// CHECK-NEXT: getelementptr inbounds nuw %struct.nested1, ptr %{{.*}}, i32 0, i32 0
// CHECK-NEXT: load i32, ptr %{{.*}}, align 4
var->a1;
// CHECK-NEXT: load ptr, ptr %{{.*}}, align
// CHECK-NEXT: getelementptr inbounds nuw %struct.test, ptr %{{.*}}, i32 0, i32 1
// CHECK-NEXT: getelementptr inbounds nuw %struct.nested2, ptr %{{.*}}, i32 0, i32 1
// CHECK-NEXT: getelementptr inbounds nuw %struct.nested1, ptr %{{.*}}, i32 0, i32 1
// CHECK-NEXT: load i32, ptr %{{.*}}, align 4
var->b1;
// CHECK-NEXT: load ptr, ptr %{{.*}}, align
// CHECK-NEXT: getelementptr inbounds nuw %struct.test, ptr %{{.*}}, i32 0, i32 0
// CHECK-NEXT: load i32, ptr %{{.*}}, align 4
var->x;
// CHECK-NEXT: load ptr, ptr %{{.*}}, align
// CHECK-NEXT: getelementptr inbounds nuw %struct.test, ptr %{{.*}}, i32 0, i32 2
// CHECK-NEXT: load i32, ptr %{{.*}}, align 4
var->y;
}